写真の問題の赤線部についてですが、なぜn≧1と書く必要があるのでしょうか？ その上の行でΣとCをすでに使っていますが、ΣとCのnの部分は定義から、n≧1だから、赤線部の前にn≧1という条件はすでに考慮してるのではないのでしょうか？解説おねがいします。

基礎問 P 44 はさみうちの原理(I) 次の問いに答えよ. (1) すべての自然数nに対して,2"> n を示せ. AOAO k-1 (2) 数列の和 S. = 2 (1) anで表せ△〇〇〇 k=1 (3) lim Sm を求めよ. △△△△ n→∞ |精講 (1) 考え方は2つあります。 I. (整数)” を整式につなげたいとき, 2項定理を考えます. PROCE (数学ⅡI・B4 ⅡI. 自然数に関する命題の証明は帰納法 (数学ⅡI・B 136 Fet (2) Σ計算では重要なタイプです. (数学ⅡB 120 S=Σ(kの1次式) k+c (r≠1) は S-S を計算します. (3) 極限が直接求めにくいとき, 「はさみうちの原理」という考え方を用います. bn≦an≦en のとき limb=limcn = α ならば liman=α n→ 00 n→∞ n→∞ この考え方を使う問題は,ほとんどの場合,設問の文章にある特徴がありま す. (ポイント) どういう意味? 解答 (1) (解I)(2項定理を使って示す方法) n (x+1)=2nCkck に x=1 を代入すると k=0 2"=nCo+nC1+nC2+..+nCn ¹) n=1 F²³5, 2²nCo+nC₁=1+n>newhere 2">n ( 解ⅡI) (数学的帰納法を使って示す方法 ) 2"> n (i) n=1のとき 左辺=2,右辺=1 だから, ①は成りたつ

赤く丸をしたbの問題で解答の方に二階微分した後の式がなぜ(-1/4)(-1/4)(H-27)になるのか分かりません。教えてください🙇‍♀️

QA At time t = 0, a boiled potato is taken from a pot on a stove and left to cool in a kitchen. The internal temperature of the potato is 91 degrees Celsius (°C) at time t = 0, and the internal temperature of the potato is greater than 27°C for all times t > 0. The internal temperature of the potato at time t minutes can be modeled by the function H that satisfies the differential equation dH (H- (H-27), where H(t) is dt measured in degrees Celsius and H(0) = 91. (a) Write an equation for the line tangent to the graph of Hat t = 0. Use this equation to approximate the internal temperature of the potato at time t = 3. (b) Use 2017 APⓇ CALCULUS AB FREE-RESPONSE QUESTIONS (a) dH d²H dt² to determine whether your answer in part (a) is an underestimate or an overestimate of the internal temperature of the potato at time t = 3. (c) For t < 10, an alternate model for the internal temperature of the potato at time 7 minutes is the function -= − (G - 27)²/3, where G(t) is measured in degrees Celsius dG G that satisfies the differential equation dt and G(0) = 91. Find an expression for G(t). Based on this model, what is the internal temperature of the potato at time t = 3 ? 564 at (21-27) - == 2-16 To = - = (H(3)-27) 4 -64 = HB)-27 -37 = H (3) (b) _d²fi © 2017 The College Board. Visit the College Board on the Web: www.collegeboard.org. GO ON TO THE NEXT P

明日提出なのでこの1ページの答え誰か教えてください🙇‍♀️💦

関係代名詞 応用演習 関係代名詞の非制限用法演習 関係代名詞非制限用法を用いた文に書き換えなさい。 1005 I visited my uncle, but he was not at home. yiwole axuage lor:8 wole desqe UOY A I found Emily easily, because I have met her before. alood yasm abron H I bought a book, but I found it boring. Vanamsi svorilob slows or A > I like these books, because it is full of photos. Where: I visited the country. Blood vorm avod Blond zara 中 >j[3M :8 A>JEL 関係副詞 Halood ilusiftih ehern syru 関係詞を用いて一つの文にしなさい。 When: I remember the day. I talked with Judy on the day. Hiroko was born in the country. at abai Why: I can't understand the reason. You are angry for the reason. How: I want to know the way. You make curry rice in that way. 非制限用法(継続用法) 関係副詞の非制限用法を用いて書き換えなさい。 I visited Wakayama, and I was born in Wakayama. Hora boog I went to Ueno by JR, and there I took the subway to Ginza. pour pr I stayed there till Sunday, and then I left for Hokkaido.

８番、関係副詞はこの波全部の分にも書き換え可能ですか？ 前置詞+関係代名詞と関係副詞と関係代名詞だけで前に出て先行詞に掛かるパターンの違いを教えて欲しいです🙇‍♂️

6. The conditions 7. The town n tow! where which under コッチが which 普通!! 11. The reason 8. the hotel (where ch) S were staying at which Recen which S were made under the conditions at その状況で 5 was held <th the town > S which ダメではない on which 10. a sunny day (when) 's arrived in Japan where staying at the hotel which where write a letter the hotel = the hotel which 5 were staying at S on the day which where TARTAS → on !! 」とは言う。 (for which) I'm writing for the reason which 手紙を書いている。 why No. Date

漸近線を求める問題です、お願いします

8. The temperature, 0°C, of a cup of tea / minutes after it was placed on a table in a room, is modelled by the equation 0 = 18 +65e s Find, according to the n. el, (a) the temperature of the cup .. 18⁰ ℃ (1) (b) the value of 1, to one decimal place, when the temperature of the cup of tea was 35 °C. 35 = 18+ 65ē 7/8 -t/8 (3) ⇒19=65€ 7/65 lu (17/4)= -4/8 (c) Explain why, according to this model, the temperature of the cup of tea could not fall to 15 °C. HA (0,94) 720 N = A + Re en it was placed on the taki (8,50) 1>0 μ= A + Be 8 04-1 Figure 2 The temperature, μ °C, of a second cup of tea t minutes after it was placed on a table in a different room, is modelled by the equation Laverage the room temp 0 -18 where A and B are constants. Figure 2 shows a sketch of u against / with two data points that lie on the curve. The line 1, also shown on Figure 2, is the asymptote to the curve. Using the equation of this model and the information given in Figure 2 (find an equation for the asymptote /. -trg t>0 is 24°C 04 142 (1) 4:10.7² DO NOT WRITER €

この問題が解けません。 aを満たすところが意味がわかりません。

Question 2. (10 Points) Give me a graph, where the z's all laugh, and play by the following rules On the figure below, sketch the graph of a function y = f(x) that satisfies: (a) lim f(z) = 3, (d) lim f(z) = 5。 エ→1+ lim, f(x) = 0. (e) lim f(z) =-5, エ→1- (c) lim f(z) = -8 (f) f(1) = 2, and エ→ (g)f is defined everywhere except maybe z =-3. 6 2 -6 -4 -2 2 4 6 -2 -4

答えは合っていますか？ 間違っているところ教えてください🙏🏼

A次の2つの文を, whereまたはwhenを用いて1つの文で表しなさい。 1. This is the place. The accident happened here. This is the place e where the acident hapenedre 2. We're going to visit the town. Natsume Soseki worked as a teacher there. We're qaina to visit the town where Natsunt Soseki worked as a 3. Do you know à good restaurant? We can have delicious Italian food there. Teacker thee h yeu knaw a 4eed restaurant _where we can have delldlave Jtallan toad ? there De 4. I remember the day. I talked to her for the first time on that dav. 1 remen ber the day when falked fo her or the fist the on that day alked to her tor the flrst thme on that day 5. The 20th century was the time. Our way of life changed a lot then. The 6h colony 山A h thne when aur May at Ire changed a lot then d Mhe 山 the whe, aur 6. I want to know the time. The concert will 'begin at that time. when the comet willl bein at that tlme |wanl e kncu thk tlue

連鎖関係詞の訳語について 写真の日本語訳を教えていただきたいです。

2。 Lore than 40,000 schoplchildren liye gutside South Korga SAAS a new eragof globalized education, ]1\ experts S1 a what which X where whose

なぜ1，３はダメですか？

24 Where ( ) meet Jane today? (1) are you 2) are you going to 3 will you to まれ ④will you going to ov

どう答えればいいか分かりません

[9] To wheredo keepers take pandas when the pandas are bigger? (2語) mowntoins